San Diego Trolley Nation’s Most Popular Light Rail

The system's ridership benefited from an extension project and free transit for youth.

1 minute read

November 30, 2023, 10:00 AM PST

By Diana Ionescu @aworkoffiction


Red San Diego Trolley light rail train at station with passengers walking on platform and Spanish-style dome building in background.

Walter Cicchetti / Adobe Stock

Transit riders in San Diego took over 34 million trips on the city’s Trolley light rail system in 2022, more than any other light rail system in the country, according to the American Public Transportation Association (APTA). As Andrew Keatts reports in Axios, this is still lower than the Trolley’s pre-pandemic ridership numbers (the system saw 38 million trips in 2019).

The Trolley opened an 11-mile extension of the Blue Line in November 2021, prompting a 66 percent jump in ridership on that line. According to the article, “The San Diego Association of Governments also began offering free transit ridership to anyone under age 18 on May 1, 2022.”

Elsewhere, “Los Angeles' light rail system had the second most unlinked trips — counting each transfer as an additional ride: 31.5 million — and Boston's came in third at 30.7 million.” San Diego continues to lead the nation in ridership based on preliminary APTA data from the first half of 2023.

Monday, November 27, 2023 in Axios

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Wastewater pouring out from a pipe.

Alabama: Trump Terminates Settlements for Black Communities Harmed By Raw Sewage

Trump deemed the landmark civil rights agreement “illegal DEI and environmental justice policy.”

April 13, 2025 - Inside Climate News

High-rise apartment buildings in Waikiki, Hawaii with steep green mountains in background.

Study: Maui’s Plan to Convert Vacation Rentals to Long-Term Housing Could Cause Nearly $1 Billion Economic Loss

The plan would reduce visitor accommodation by 25% resulting in 1,900 jobs lost.

April 6, 2025 - Honolulu Civil Beat

Blue and white Seattle Link light rail train exiting concrete Downtown Bellevue Tunnel in Bellevue, WA.

Why Should We Subsidize Public Transportation?

Many public transit agencies face financial stress due to rising costs, declining fare revenue, and declining subsidies. Transit advocates must provide a strong business case for increasing public transit funding.

April 7, 2025 - Todd Litman

Silhouette of man holding on to back of bicycle ridden by woman with Eiffel Tower in background.

Paris Bike Boom Leads to Steep Drop in Air Pollution

The French city’s air quality has improved dramatically in the past 20 years, coinciding with a growth in cycling.

April 14 - Momentum Magazine

Multifamily housing under construction.

Why Housing Costs More to Build in California Than in Texas

Hard costs like labor and materials combined with ‘soft’ costs such as permitting make building in the San Francisco Bay Area almost three times as costly as in Texas cities.

April 14 - San Francisco Chronicle

Western coyote looking at camera in grassy field.

San Diego County Sees a Rise in Urban Coyotes

San Diego County experiences a rise in urban coyotes, as sightings become prevalent throughout its urban neighbourhoods and surrounding areas.

April 14 - Fox 5